Minor fix/request

Hello pco_58

Thank you for your work on this simple yet well functioning plugin, Have you noticed that “Return Order” button in Customer’s order page adds a new note in Order details every time a Customer click it. Some Customers might unintentionally click it multiply times causing Order notes to be added multiply times in order details at “Back End” its kinda spammy for shop managers.

Could you please limit “Order Return” button to one time only per product. Or maybe limit it from adding order note everytime its clicked. Thank you very much

Regards.